India's Anti-Dumping Duty on Vietnamese Calcium Carbonate Masterbatch: Why Importers Are Switching to Raw GCC Powder (2026)
India's anti-dumping duty on Vietnamese calcium carbonate filler masterbatch runs US$ Nil–75/MT — with a countervailing duty up to US$69.19/MT recommended June 2026 on top. Neither touches raw GCC powder (HS 2836.50, 0% under AIFTA with Form AI). Why Indian compounders are switching to raw powder, and how to choose a grade.